Shin guard



FIG. 1 is a perspective view of the shin guard showing my new design;

FIG. 2 is a right side view, the opposite being a mirror image thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a left side view, the opposite being a mirror image thereof; and,

FIG. 5 is a bottom view thereof. 

The ornamental design for a shin guard, as shown and described. 